Homeostasis is the regulation of an organism’s internal environment to maintain conditions suitable for life. homeostasis requires

Homeostasis is the ability of an organism to adjust its internal environment to maintain a stable equilibrium. Homeostasis requires balances between many factors in the body such as the body temperature. Other factors include; fluid balance, blood sugar level, pH of extracellular fluid and the concentrations of sodium, potassium and calcium ions. These factors must be kept within specific pre-set limits in order to maintain the body's overall function.

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

not only is it colder, it also becomes darker, less salty, and more dense.